D.I.Y maf conversion help

[88e30dippin]

okay so can someone help me out with this diy maf conversion?

i am using a for taurus 3" maf sensor. its a 4 wire. i got the sensor and the plug off the taurus. now i know i will need a chip to cancel out the afm. i found a wiring diagram from miller performance showing how to do the wiring for their maf sensor so it should be the same for the sensor i have since its 4 wire. i just need to know if i did the wiring right, what exactly would the mapping need to be on the chip? im thinking about going the cheap route and getting an ebay dinan chip and having them change the injectors to m50 injectors and delete the afm and what ever else is need to make the new maf work.

[Reeves]

I'm not really sure if that would work, but I do know that chips programmed to use MAF simply convert the MAF sensor readings into AFM readings so the computer can understand them. So just "deleting the AFM" probably isn't going to work.

[badvibrations]

I'm not really sure if that would work, but I do know that chips programmed to use MAF simply convert the MAF sensor readings into AFM readings so the computer can understand them. So just "deleting the AFM" probably isn't going to work.

+1

Save up and spend the monies to get miller's MAF. It's well worth the money and all the work has been done for you.

[88e30dippin]

well a maf is a maf. i don't have to buy a miller one when i can just use the 2.5" volvo one. its the same wiring either way. i went to miller website and there wiring involved either way. i just found that all i will need is a good chip that has the right programming for a afm to maf conversion. miller performance has a chip they include with there maf kit that i can buy separately and just use my maf and use the miller wiring diagram that i saved to my computer. i'll evenually do get the miller maf because it will be warrantied and would be better choice since im going boost. but for now the 95 volvo turbo maf will have to do.

[brody]

The MAF sensor will have a different "scale" and thus would require software specific to that sensor.

Which Wiring diagram are you using. Want to make sure you are using the appropriate one for that type of sensor.

[badvibrations]

well a maf is a maf. i don't have to buy a miller one when i can just use the 2.5" volvo one. its the same wiring either way. i went to miller website and there wiring involved either way. i just found that all i will need is a good chip that has the right programming for a afm to maf conversion. miller performance has a chip they include with there maf kit that i can buy separately and just use my maf and use the miller wiring diagram that i saved to my computer. i'll evenually do get the miller maf because it will be warrantied and would be better choice since im going boost. but for now the 95 volvo turbo maf will have to do.

. . .k

[88e30dippin]

heres the website i found from miller to do the wiring. its the same wiring for all the maf sensor's. i just am going to buy the war chip for 350 off their website.

http://www.millerperformancecars.com/files/M20%20MAF%20instruction%20manual%20GEN%20III.pdf

[Jaxx_]

MAF is a Maf, just grab a SAFC and tune after you've retrofitted it. If you know which wires are 0-5v output to the ECU it's not hard to wire in an aftermarket maf. However, having the correct MAF values is. Your car will run like shit unless you matched up the maf perfectly to the size of the pipe that you replaced it with. ...but the likeliness(sp?) of this is very slim.

to be honest, the main difference between a MAF and a AFM is the name. They're both going to give a signal to the ECU in terms of air flow. This isn't a MAP based system so it's not like any other signal is needed.

[88e30dippin]

well im going to go with a war chip either way now so i can have a good tune for when i go turbo. i should be able to make this 3" maf off of the 95 volvo turbo work with the chip. since i have enough fuel all i need is little better air flow to help make the mixture right.

[nando]

to be honest, the main difference between a MAF and a AFM is the name. They're both going to give a signal to the ECU in terms of air flow. This isn't a MAP based system so it's not like any other signal is needed.

wrong

they work on entirely different principals. MAF systems measure the MASS of air directly. an AFM works more like a MAP sensor, it's measuring pressure and inferring the air mass based on a set of assumptions. These assumptions are built into the VE maps inside motronic. a MAF uses a simple voltage/air mass transfer curve, not a VE map. it's not a matter of plugging in a MAF and adjusting the fuel output because they don't even use the same algorithm.

that is why there is no MAF DIY, other than guys smart enough to hack the ECU firmware (nobody here) or guys like brody with the resources to R&D a true conversion. he's not just selling you a random MAF at a huge markup that you could get off a junkyard car and do the same thing, it doesnt work that way.

[DmcL]

lol @ this thread..

u cant just grab some random MAF nomatter how many terminals/wires it uses and stick it in with a random chip. u can do a MAF conversion or u can buy the miller MAF. it has been done with E36 MAF's, hyundai MAF's and Volvo MAF's (with retrofitting the stock air temp sensor into the wiring) but u would need to find a thread or info from someone who has done it and copy it to the letter using the sane exact part number MAF and also u would need to be able to tune the AFM maps in the ECU or in a program and either use the values the other person did and hope for the best or buy an emulator, wideband, get compatible tuning software and tune it yourself.

MAF conversion are not like M30 AFM swaps where u can stick it in and the car will run but not great... it wont run at all or will barely run and wont rev or will run rich/lean, not be drivable, not pull up the revs, etc, etc, etc.

if u use a war chip u still face the same problems mentioned above plus the added bonus of the miller editing software not allowing u to edit AFM maps and no miller will not be able to send u a tune for god knows what MAF u want to stick on there with unknown wiring. probably for the better tho as less chance of damaging ur engine because u seem to have the impression mapping in motronic is very simple... u have no idea lol

[george graves]

to be honest, the main difference between a MAF and a AFM is the name.

This is true.

Also, the only difference between a SOHC and a DOHC is only one letter, so to be completely honest with you, I'm positive that you can install two cams on any single cam head.

Kay

ThX

Byyy

[DmcL]

This is true.

Also, the only difference between a SOHC and a DOHC is only one letter, so to be completely honest with you, I'm positive that you can install two cams on any single cam head.

Kay

ThX

Byyy

:weak:

[george graves]

^Mind blowing, it's it?

[Jaxx_]

wrong

they work on entirely different principals. MAF systems measure the MASS of air directly. an AFM works more like a MAP sensor, it's measuring pressure and inferring the air mass based on a set of assumptions. These assumptions are built into the VE maps inside motronic. a MAF uses a simple voltage/air mass transfer curve, not a VE map. it's not a matter of plugging in a MAF and adjusting the fuel output because they don't even use the same algorithm.

I stand corrected then. I was not aware that these cars used speed density, I thought that the AFM in these stone age management systems was simply air mass. Thanks for clarifying, I was under the wrong impression then. :)

I apologize for spreading bad information, that's what I hate to do.